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Author: Arthur Giese
Publisher: Elsevier
ISBN: 0323154360
Category : Science
Languages : en
Pages : 358
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Book Description
Reproduction of Marine Invertebrates, Volume III: Annelids and Echiurans illustrates the importance of annelids and echiurans in the evolution of reproductive mechanisms and in the ecology of the sea. It discusses the asexual reproduction, sexual reproduction capacity, and developmental stages of specific annelids, such as polychaeta and clitellata, and of echiurans. The annelids appear to be midway forms in the evolutionary progression of the metazoans. The echiurans, with close affinities to the annelids, are organisms that have become increasingly important for researches in developmental biology. The book will be helpful to marine scientists and biologists, reproduction researchers, and developmental biologists.
Author: Arthur Giese
Publisher: Elsevier
ISBN: 0323154360
Category : Science
Languages : en
Pages : 358
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Book Description
Reproduction of Marine Invertebrates, Volume III: Annelids and Echiurans illustrates the importance of annelids and echiurans in the evolution of reproductive mechanisms and in the ecology of the sea. It discusses the asexual reproduction, sexual reproduction capacity, and developmental stages of specific annelids, such as polychaeta and clitellata, and of echiurans. The annelids appear to be midway forms in the evolutionary progression of the metazoans. The echiurans, with close affinities to the annelids, are organisms that have become increasingly important for researches in developmental biology. The book will be helpful to marine scientists and biologists, reproduction researchers, and developmental biologists.
Author: Arthur Giese
Publisher: Elsevier
ISBN: 0323154352
Category : Science
Languages : en
Pages : 359
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Book Description
Reproduction of Marine Invertebrates, Volume II: Entoprocts and Lesser Coelomates focuses on the reproduction of smaller groups of marine metazoans. It is organized into nine chapters; each chapter is devoted to a specific marine metazoan. The asexual and sexual reproduction and developmental stages of entoprocta, tardigrada, priapulida, sipuncula, pogonophora, chaetognatha, hemichordata, tunicata, and cephalochordate are discussed. This book is ideal for marine invertebrate researchers, scientists, and reproduction experts.
Author: Charles Metz
Publisher: Elsevier
ISBN: 0323148433
Category : Science
Languages : en
Pages : 488
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Book Description
The Fertilization Response of the Egg is the third and final volume of the Biology of Fertilization which provides a detailed discussion of the responses of the egg to the fertilizing sperm, collectively called as the activation of the egg. It is an anthology of physiological articles written by biology and physiology professionals. The book is divided into 12 chapters, half of which focused on the sea urchin egg fertilization, as it is the most studied form. The first two chapters cover the discussions on the first visible egg responses to fertilization and the formation of the fertilization membrane. The following chapter describes the relationship of sperm entry into the amphibian egg and the establishment of the symmetry of the embryo. Other chapters focus on the electrical and ionic changes of the egg plasma membrane and cytoplasm. The remaining parts of the book describe the synthetic activities in the egg that are initiated during fertilization. These include description of DNA and maternal RNA syntheses, nuclear-cytoplasm interactions, protein synthesis during oogenesis and early embryogenesis, and the expression of maternal messenger RNA. The book is an excellent reference for undergraduate and graduate biology students, specifically in physiology, embryogenesis, and developmental biology. It can also be an invaluable source of information for lecturers and professionals in biology.
Author: Greg Rouse
Publisher: Oxford University Press
ISBN: 0192591622
Category : Science
Languages : en
Pages : 496
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Book Description
Annelids (the segmented worms) exist in a remarkably diverse range of mostly marine but also freshwater and terrestrial habitats, varying greatly in size and form. Annelida provides a fully updated and expanded taxonomic reference work which broadens the scope of the classic Polychaetes (OUP, 2001) to encompass wider groups including Clitellata (comprising more than a third of total annelid diversity), Sipuncula, and Thalassematidae (formerly Echiura). It reflects the enormous amount of research on these organisms that has burgeoned since the millennium, principally due to their use as model organisms to address wider and more general evolutionary and ecological questions. Beginning with a clear introduction to the phylum and an outline of annelid taxonomy, this authoritative text describes their collection, the methods to ensure their optimal preservation, and an overview of anatomy with its relevant terminology. The core of the work comprises 77 fully up-to-date taxonomic chapters, informed by anatomy and the latest molecular phylogenomic evidence and carefully organised based on a new, robust phylogenetic hypothesis. Lavishly illustrated throughout with hundreds of previously unpublished high-resolution colour images and SEM micrographs, the sheer beauty and diversity of the annelids is nowhere better presented. Annelida is the definitive reference work for annelid biologists, whilst being of interest to a broader audience of invertebrate zoologists, systematists, and organismal biologists.
Author: Barrie G M Jamieson
Publisher: CRC Press
ISBN: 1482280159
Category : Science
Languages : en
Pages : 699
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Book Description
Annelida is a diverse group of animals, commonly referred to as segmented worms and currently comprising around 14000 described species. Found in most marine and freshwater areas, annelids have also successfully occupied many subterranean habitats. This volume documents annelid reproduction in the context of their phylogenetic relationships. It pre
Author: Ole G.. Norden Andersen
Publisher: Museum Tusculanum Press
ISBN: 9788763511599
Category : Jørgen Brønlund Fjord, North Greenland
Languages : en
Pages : 32
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Book Description
Author: Günter Purschke
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110381788
Category : Science
Languages : en
Pages : 1129
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Book Description
This book is the first in a series of 4 volumes in the Handbook of Zoology series about morphology, anatomy, reproduction, development, ecology, phylogeny and systematics of Annelida. This first volume covers members of the so-called basal radiation and the first part of Sedentaria. It is supplemented by chapters on the history of annelid research, their fossil record, and an introduction to the phylogeny of annelids and their position in the tree of life. In the latter chapter the history of their systematic is reviewed giving an almost complete picture of systematic-scientific progress especially in the past years which changed our view on annelid phylogeny dramatically. The most basal annelids, lately united as Palaeoannelida, represent two families of aberrant polychaetes formerly often suggested to be highly derived which now give us a fresh look on how the ancestral annelid may have looked like. These lack certain key characters such as nuchal organs and possess rather simple nervous systems which now likely represent primitive character states. In this basal radiation the first taxon of apparently unsegmented and achaetigerous animals is positioned, the Sipuncula. Most likely another group of platyhelminth-like and unsegmented and even chaeta-lees annelids, Lobatocerebridae falls into this basal radiation. The section of Sedentaria starts with Orbiniida, a taxon characterized by elongated, thread-like worms which do not have anterior appendages like palps and comprises several families representing members of the Meiofauna. These minute worms often inhabiting the interstitial spaces in marine sands are suggested to have evolved by progenesis. The second higher taxon is represented by Cirratuliformia comprising nine families of typical sedentary polychaetes each of which showing a remarkable variation of the annelid body plan. Members of this taxon usually exhibit many annelid characters but certain also lack the most typical prostomial appendages, the palps.
Author: Pamela L. Beesley
Publisher: CSIRO PUBLISHING
ISBN: 9780643065710
Category : Reference
Languages : en
Pages : 582
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Book Description
A comprehensive account of Polychaetes in Australia. Based on nearly 2400 references, the authors reveal the wealth of diversity in the largely unknown world of these worm groups, in terms of their morphology, behaviour, reproduction and significance in marine ecosystems.
Author: Poul Schever
Publisher: Elsevier
ISBN: 0323159311
Category : Science
Languages : en
Pages : 247
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Book Description
Marine Natural Products: Chemical and Biological Perspectives, Volume III, reviews the state of knowledge in the chemistry and biology of marine natural products. It attempts to bring together timely and critical reviews that are representative of major current researches and that, hopefully, will also foreshadow future trends. The volume's first chapter discusses separation techniques, including liquid-liquid extraction, membrane separation, chromatography, capillary gas chromatography, and high-performance liquid chromatography. This is followed by a chapter on amino acids that have been isolated from marine algae. Kainic acid, for instance, is a well-established ascaricide that was isolated from a red alga that had been known as an anthelmintic for a thousand years. Only recently, however, has it been recognized as a valuable tool in neurophy sinology. Subsequent chapters deal with nitrogenous pigments in marine invertebrates; and the phenomenon of bioluminescence, which is relatively rare among terrestrial organisms, but which is widespread among marine biota.
Author: Ernst Knobil
Publisher: Academic Press
ISBN:
Category : Medical
Languages : en
Pages : 1160
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Book Description
"The present work should serve as a convenient and comprensive source of information encompassing all aspects of the subject of reproduction as it relates to the entire animal kingdom." -- Preface, p. xxxiii.
